Apparatus and method for forming tires



Jan. 9, 1923. 1,441,514

u" T. LISTERv APPARATUS AND Mcww FOR FORMING T- FILED FEB. I3. 1907 3 SHEETSSHEET 73 2311 @4664 a 1:2 M w of diflerent material, such or unwcveu apparatus in the formation of atire shoe or. outer sheath in which there is 20.

' tire the several layers-of which the cords may a used in. buiiding' up afl'elcvstionof a guide used for Patented Jan. 9, 1923.

cuirsn STATES PATENT OFFICE,

some '1'. men, or 0mm, omo. srrnnsrus um moo son some 'rmm.

Application filed sumoea, 1901. semi Ho.857,184.

'lo ail whom it may concern-a" Be it known that I, Josue T. Lrs'rnn, a citizen of the United States, residing at Cleveland in the county oi Loyal-logs, and State of lhio, have invented a certain new and useful Im Methods for following is a, full, clear, and exact description.

The object of the plegient invention is to provide apparatus for the manufacture-of tires comprising, in their structure, layers cord or textile material in any Suitable form, together with rulgbcr.

In the illustrutionofthc invention here shown I have contemplated the use of the a layer of cords extendin side by side circumfercn tiully around 1; e sheath and a second layer of cords separated from thelirst layer of cords by rubber, in which second layer the cord is laid so as to run from side to side transversely of the shoe. While this particular form of tire shoe is shown, it is ohvious that the main features of the mechaniam may be used for constructing tires m all run in one direction or in which. the

' order of the layers of cord may be changed.

Beferrin to the accom anying drawing, Figure 1 own, in side e ovation, thegenoral arrangement of the apparatus employed in connection with the. Figure 2 is a cross section-of the core showin a manner of attachment to the spider by w ich it is revolved, the severnllayers of a in the process of formation being also in cross section. Figure 3 is 11.

indicated cross section of themold'showmg apair of complementer formers. re 1 18 a de- 'j' section, an 1] to show the appearance in-ythcgcro'se sect dn of a couple of layers the tire. Figure 5 is 0 long:-

tudinnl running threads. Figure 6 is .atplan, illustrating the general arrangement 0 the mechanism for feeding in the cord which form the uppersheot in Figure 1. Figure 7 is an enlarged h-tail plan showing the arrangement oi the parts for placing a layer of cord transversely upon one of the rub r rovement in Ap aratus and, arming Tircs o which the;

as woven fabricstiouerl layer is constructed.

revolving core.

wish to construct the tire,

the required number of layers are nssembind, and the sheets are cut and'the proper joints made, whereupon the formed tire is ready for removal from the revolving mechanism for subsequent vulcanization.

In the arran 'cment of apparatus shown I have illustrated assembling together alternate layers of two varieties,,in one of which, B, a number of longitmhnully parallel cords lying side by side are held between two rubber sheets, and in the other of which C, a cord is laid back and.forth transversely between two rubber sheets. In Figures 1 and 0 I-luwe shown the mechanlsm as used for the arrangement by which the first men- A series of spools B supply the parallel cords B tlrough a proper fcedingrack B to a bath B of rubber cement, in those cases where it isdesircd to use the cement, from which the cords are carried through a shaplug guide B and a cold blast B to assist in the rapid evaporation of the cementsol-V ventand consequent drying ofthc cement.

After'this the cords are carried to a wheelv D which has a rim D ing the shape and size of t core A.

In conjunction with this forming wheel I use an adjunrtive shaping wheel D" to enact with tbe rim D to give the sheet its of U shape-approachproper form. At the point, where these wheels receive the sheet and draw it into proper shu )6, I feed a sheet of rubber B. above the ayer of thread ahda sheet of rubber ll" beneath the same. By this arrun ement the threads, together with the rub :cr sheets, will he brought together in approximately the form which they will occupy on the revolving core and in the e. revolving finished tire. the cement on the threads uniting them tirmlr to the sheets ol l'llllllll' it\ soon as the come in eontart.

It will he noted that. h v feeding the cords to the shapin wheel I) in this manner, the feed of the rords at the outer edges. where they are in the portion of the shapelrim D having the least diameter. will take place at a less rapid rate than the feed of the cords about the middle portion of the layer. This is as it should he. sinee the length of cord put into the middle portion of the tire should. of emllse. be greater than the length of the cord put into the inner edges thereof. since otherwise. either the cords in the middle portion would have to be stretched snttieientl v to eoinpensate lor the difference in the length of eord originally put into the same or the rords on the edge would he somewhat lnn'kled or crowded to take care of the surplus eord whieh might be present.

After passing from the shaping wheel ll the la er is led preteralily over a guiding horn E to prevent the soft fre h rulilier from sagging against the revolving rore until the. desired point is rein-lied. .\t this point, the composite layer. l eomprising the cord ll with the two rulilier sheets. ll". ll passes on to the revolving mold. whereupon it is snitahly pressed. accord ing to the necessities of the ease. with rotating complementarv formingv wheels In the particular instant-c illustrated. I also use a serond and dillereut layer For form ing the tire which. as shown in 'li ures I and 8 comprises a layer of rord laid transversely hack and forth arms the sheet. This cord is taken from a spool and led through a cement hath if desired and suitable drying apparatus t to a merhanically and rapidlyoperating shuttle l" which feeds the cord bark and forth arross a lower l'uliber sheet elose to the point where this layer is fed. together with an upper layer U". to a shaping wheel (l similar to the wheel D, previously deserilled.

Just before the layer of ord upon the lower rubber sheet, U is united with the upper sheet, C. the lower sheet, with the cord thereon, is curved into a U shape and passed through suitable met-hanism uch as a, guide having' a pair of internal. inverted, conical rolls, H H. whieh latter rotate so as to crowd the outer ends of the cord ayer close together This is for the purpose of properly adjusting, them in view otthe fart that the center of the rubher sheet is drawn along more rapidly than the outer edges. As soon as this crowding is etteeted. it is preferable to apply a eold blast, I, to the layer so as to set the lords in position. whereupon the. upper layer. t. is united \rith tlu: ompositr transverse i-ords made up of eortls in the lower sheet of rnlilier.

The laver. t. formed by the union of these t 'o rnlilier sheets with the transverse layer of rord. is then earried along to the rotatii'rg rore to whirh it is attached and is preterahlv t'ed thereon to a point dianuil'irallv opposed to the point to whirl] the [iit mentioned layer is fed.

lly the means descri icd. itis evident that 1 may apply a grealer nnlnher of layers to the rol'atin; rore simnltatieouslv. and these layers may he all alike or dilli-rent. :lt't'Oltlin;- to the desire ot' the operator.

[1. will he noted. on referrimg to Figure 1. that the rore is made in seetions and is reinovalllr iFttarhr-rl to the spider A on whirh it is mounted and rotated. l i ure 2 sho\vin a preferred manner of attachment. .\fter the requisite number of layers have heen wound on the rore and the webs have been rut. the euro is loosened from the spider on whieh it is held and its place may he lillitll hy another one while the green tire is heing cured.

When it is desired to remove the core From the tire all that is neressauv is to draw out the removahle set-tions which. as shown. have their ends rut along parallel lines for this purpose. With these removalile sertions A out. the other sections A then also may nhviouslv he readily withdrawn.

It is not. neee: are to dwell upon the importanre of. this invention to the art or the great. shortening of time within whieh rom posite tire sertions may he ronstrurtial as compared with the presentmethods.

Having: thus deserihrd my invention. I claim:

1. In a tire malt-in; machine. a rotatable eot'e, a eon-vex roll over which materials mirvhe fed and united into a falu'ie having approximately the shape it is to orcupv in the completed tire. and a guiding; horn so shaped and positioned hrtween said roll and eore as to retain sueh preliminaev shape and preventinp the l'aluir from sagging against the euro until the desired point is rearhed.

2. in a marhine foniuali'lng tires t-l' Live strips. means eomprisin g a movable rore for.urratnzin nnwoven eord in strip form and simultaneously shaping the strip liy giving it a eurvature ot' suhstantiall the eross sertional outline of a tire.

"3. In the art of making tires or tire strips, means inc-hiding a sourre of cord supply and eoopevating formers for forming a tire strip whose strength giving element. is 'unwoven rord and shaping the strip to a enrvature of substantially the sectional outline of a tire.

4. In the art of makin; tires or tire strips. means comprising rooperating' forming ele ments for Forming :1 strip of uuwoven i-ord and ruliher and simultaneously shaping the strip to sulistantially the rross sertional outlilu' (Il :l tll'ti.

5. Inumachineoitheqharacter-desofibed, meanecomprisiug a ftgz'mmg an}! rotery meanshoob J erevint r. prim unwov'en into e-jjst'ri ifolasha the strip to eubgtentt y the outline of a tn e forming 6. In a. tire "xngking machme e rqte ry' oore'towhieh stnpe'fmu be epphed, and

means for fo'm'aihg a show ng a strip 10. whose base isunxvo ienlfihrouymetefi B that the strip will eoniormj-euhgiteutiel lyflo the cross sectional ,ehepe of the core when py i theh j P-m fo {fibrin we gz m 1 a o Q. 1 "11* i h p i unw m fibm I m hj m Tu Y wa s. H: efsemei th Q 1 The th d f I tire 10mins M 3 1 m i g-thes ri fmm .4 801 a!) ungyigegxhrdhndmt the sa' time MT -JH R hbel'ized her annhmumnm .forgnpfithe same into QF T P 1 3ml fw sha in to. ,Lsttip to sghetontiollykthe cgoae-eectionafofitlifie of t e m. v 5,.-

i im. i 9 9 mm -5 which mpo f rq iqs f rip nmmv' n 1 m ao'iel cords the and in the some continuoueopergtion app to the core of'a-tire-muki .peghme. v

13. meme rot folm r m which compnse'giqgpingand eh] a. "comggsedofun woven cords an rubr and then amply: thestrip to the core o fi -m in m I l 14. The method rpmkmg tigei, which p i e n nti u us p n fim formso ing the strip, of unwoven'cofdend rubber, shepinfg the ty-in togthe'. seotional n'lbline 0 theoorepf a the m" ng machine, and ly1ug ;the to the core. 1 lfif he method 757: mah'ing a which comprises fqrmini! ma shaipihg u 'pll'lrality 11.1mm am, "'itigaficirmi ni fed 'change in form or of strips of unwoven cords end rubber-with the cords of one strig running at on Io to the cord's in the ot er ship and a plying the strips to the core of u-tlre u: 1 'machine. 1 16. In it tire making muohihe, the eombination with a ooretmeans for feeduifi upon said core'a plurality of bands form OfzhlllWOVBll cord and sheet rubber, the 00rd of each band bein aw so that the bands' superimposefupout e coi e will hove 00;;(18 extending at angies relatweto egeh 0t er. A 7

17. In a. tire 'n1eki u fahric-smoothin 1:31am mounted adjacent 8Q toone side theme and acting to lay 'iahric thereon said puller comprismg a. portion ulier diameter'flaringto a. of. largerdjnmeter. i I 18. In a. themekingmanhine; theoomblnation with means for wpplyin' 'tireformin material, e core-upon whi qa'id metel-ml is "fed, end a member 'looated adjacent the core and ger'ving-tok'guidemhetire-form ing mflateria lfto' the core. 19. In 'a'tire makingqnuchinqmeanafor machine, a. core and supplying u's'tri poftlreforming meterial, on

curved '1'nembe1; o'djment the coreyuud eel-v- "ing to guidethe tire' forming'mutefiai onto th w 20; In a tiremakingmechineqheens for ng' suQplying-tire forming-matefihkecore3on 1|- 21. In a tire 'm'uking maohinwthe combination of |neensf0r su *tirefolming aterial, u (are upon'w hi maidmeterial is 106 a member located ad'aoent the core said member being swshape-and tgositioned that it guides themeterial onto e'oore so that the material undergoes no-subetantial V shapfl imp T0111 said member (othe core.

22. The method of-miiting tires which consists in fonnirtiEu stx-ip of=tire forming materidl and in same eontzinuous operation feeding it upon a tire forming core.

23. The method of makin tires whioh consists in forming a'strip 0' time forming material comprising nnwoven cordand rubher, and in the same continuous operation feeding it upon a tire formingoom.

24. Themethod -of mel in ftil'es' which a str p, y' feeding a St"? of rubber on cords mtoengegement, I rolling the same, end in the sameoperation feeding the-formed strip 'to "a tire forming 126 core.

25. The method of makin "tireshwhich consists in forming a etip' a stfip of I uhber and' u wov'en w im-o1 ev same hogetheiand'as a continuous CE 1 80 orationfvmling Hm wh'ip upon :1 UK Form-.- ing mm.

16. Tin mulhmi ul' making til'vs which (-mupriM-s Forming a tire forming strip u'unsvvl'svl v "urn-d. mm in Hm sumo cu! Hmlnus npvrznlilm fuwling flu (urn-ll drip HPUH {I [Irv 1(HHHH L )11.

31 In :1 tin l'm'ming apparatus. :1 rotary :nnupon Whit-h a tin 02min is :ulzxptvd to I'm-nun and means for firming HIP sti'ip am! at thu sumo Hull imparting a transverse (-m'mun'e col-responding substantially to Lluwuss ser'timml shape of the comand for signifying! thv strip to Hu- (mc in the same IOhiillllffllr' upm'zltiml which [nuns and Shams: it

In {vsliumny \vhervof, l hereunto afiix my .wiflhll lll'l in thv presume of two witnesses.

JOHN T. LISTER. W51 mosses:

.T M. \hmmxp-uux [*I. B. Gn'cmnsw; 

